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2025年10月17日 / Last updated : 2025年10月17日 桑子 研 Science

One Safety Pin to Stop Static!? The Shocking Life Hack That Ends the Zap!

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Have you ever reached for a doorknob during the dry winter season and heard a sharp “ZAP!” that made you jump? That painful sting is an unpleasant rite of passage for many in the colder months. Well, a surprising solution to this common problem […]

2025年10月17日 / Last updated : 2025年10月17日 桑子 研 Science

Why Is the Blue Flame the Strongest? Understand Gas Burners Perfectly by Thinking Like Gas Itself!

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. A Bunsen burner might look intimidating at first, but don’t worry. This article breaks down exactly how to use one. Every single step in operating a Bunsen burner is backed by a scientific reason. Why this specific order? Why does the color of the […]

2025年10月16日 / Last updated : 2025年10月16日 桑子 研 Science

The Slinky Secret: Visualize Sound and Earthquakes with a Toy Spring

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! What comes to mind when you hear the word “wave”? Maybe the shimmering waves of the ocean, or the ripples spreading across your bathtub? In fact, our world is full of “waves” that are invisible but incredibly important. The most common example is sound. […]

2025年10月16日 / Last updated : 2025年10月16日 桑子 研 Science

Why Does Salt Water Conduct Electricity but Sugar Water Doesn’t? The Shocking Secret of Kitchen Chemistry!

I’m Ken Kuwako, your Science Trainer. Every Day is an Experiment! When you hear the phrase “something that conducts electricity,” you might immediately picture shiny metals. But did you know that you can create a mysterious liquid that carries an electric current just by dissolving a common ‘powder’ found right in your kitchen? The science […]

2025年10月15日 / Last updated : 2025年10月15日 桑子 研 Science

When It Fizzes—A Peek into the Ancient Sea! Uncovering the Mystery of Rocks with Just a Drop of Acid (Limestone vs. Chert)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. [This article is also available on the radio!] A smooth, white rock lying on the side of the road. Wouldn’t you want to know its true identity? Like a detective in a forensic investigation, a single drop of a “magic liquid” can unlock the […]

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運営者:桑子研(くわこ けん)
科学の楽しさや不思議、感動を多くの人に届けていきたい。理科教師として勤務する傍ら、サイエンストレーナーとしてテレビ番組の科学監修・出演、実験教室、科学本執筆なども行っています。

Author: Ken Kuwako
I want to share the fun, wonder, and excitement of science with as many people as possible. In addition to my work as a science teacher, I also work as a "Science Trainer," providing scientific supervision for and appearing on TV programs, holding hands-on science workshops, and writing science books.

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